Average Weather in March in Boise Idaho, United States
In Boise, the month of March is characterized by rising daily high temperatures, with daily highs increasing by 8°F, from 51°F to 59°F over the course of the month, and rarely exceeding 71°F or dropping below 41°F.
Daily low temperatures increase by 4°F, from 33°F to 38°F, rarely falling below 23°F or exceeding 46°F.
For reference, on July 26, the hottest day of the year, temperatures in Boise typically range from 63°F to 93°F, while on January 1, the coldest day of the year, they range from 24°F to 36°F.
Average High and Low Temperature in March
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in March
The month of March in Boise experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 59% to 54%. The highest chance of overcast or mostly cloudy conditions is 59% on March 1.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 46% of the time.
For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Boise, the chance of a wet day over the course of March is gradually decreasing, starting the month at 23% and ending it at 20%.
For reference, the year's highest daily chance of a wet day is 28% on December 1, and its lowest chance is 3% on July 28.
Probability of Precipitation in March
The average sliding 31-day rainfall during March in Boise is essentially constant, remaining about 1.2 inches throughout, and rarely exceeding 2.3 inches or falling below 0.3 inches.
The highest average 31-day accumulation is 1.2 inches on March 9.
Average Monthly Rainfall in March
Over the course of March in Boise, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 30 minutes, implying an average daily increase of 3 minutes, 0 seconds, and weekly increase of 21 minutes, 0 seconds.
The shortest day of the month is March 1, with 11 hours, 13 minutes of daylight and the longest day is March 31, with 12 hours, 43 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Boise is 7:03 AM on March 11 and the latest sunrise is 58 minutes later at 8:01 AM on March 12.
The earliest sunset is 6:33 PM on March 1 and the latest sunset is 1 hour, 37 minutes later at 8:10 PM on March 31.
Daylight saving time (DST) starts at 3:00 AM on March 12, 2017, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 6:03 AM and sets 15 hours, 26 minutes later, at 9:29 PM, while on December 21, the shortest day of the year, it rises at 8:15 AM and sets 8 hours, 56 minutes later, at 5:11 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Boise is essentially constant during March, remaining around 0% throughout.
For reference, on August 24, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in March
The average hourly wind speed in Boise is essentially constant during March, remaining within 0.2 miles per hour of 7.3 miles per hour throughout.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on September 15, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.
Average Wind Speed in March
Wind Direction in March
The growing season in Boise typically lasts for 5.9 months (179 days), from around April 23 to around October 19, rarely starting before March 31 or after May 16, and rarely ending before September 26 or after November 10.
The month of March in Boise is very likely fully outside of the growing season, with the chance that a given day is in the growing season gradually increasing from 0% to 9% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March
The average accumulated growing degree days in Boise is gradually increasing during March, increasing by 48°F, from 10°F to 59°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Boise is increasing during March, rising by 1.5 kWh, from 3.4 kWh to 4.9 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Boise are 43.613 deg latitude, -116.203 deg longitude, and 2,740 ft elevation.
The topography within 2 miles of Boise contains significant variations in elevation, with a maximum elevation change of 505 feet and an average elevation above sea level of 2,746 feet. Within 10 miles contains significant variations in elevation (3,980 feet). Within 50 miles also contains extreme variations in elevation (7,556 feet).
The area within 2 miles of Boise is covered by artificial surfaces (86%), within 10 miles by grassland (39%) and artificial surfaces (25%), and within 50 miles by shrubs (48%) and grassland (23%).
This report illustrates the typical weather in Boise year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Boise.
For each station, the records are corrected for the elevation difference between that station and Boise according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Boise is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Boise and a given station.
The stations contributing to this reconstruction are: Boise Air Terminal (98%, 6.0 kilometers, southwest); Stanley, Stanley Ranger Station (0.7%, 120 kilometers, northeast); and McCall Airport (0.8%, 142 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .